ATEX Endress Hauser Prosonic FDU91-RG2AA Ultrasonic Sensor - 10m Range, -40°C to 80°C Temperature, HART/Profibus DP Communication
The Endress+Hauser Prosonic FDU91-RG2AA is an ATEX-certified ultrasonic sensor designed for continuous, non-contact level and flow measurement in demanding industrial environments.
| Parameter | Specification |
|---|---|
| Measuring Principle | Ultrasonic Time-of-Flight |
| Accuracy | ±2 mm + 0.17% of measured distance |
| Temperature Range | -40°C to 80°C (-40°F to 176°F) |
| Pressure Range | 0.7 to 4 bar abs (10 to 58 psi) |
| Maximum Measurement Distance | Liquids: 10 m (33 ft), Solids: 5 m (16 ft) |
| Blocking Distance | 0.3 m (1 ft) |
| Process Connection | G / NPT 1" |
| Communication | 4-wire (HART, Profibus DP) |
| Certifications | ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI, EAC Ex |
Continuous non-contact level measurement of fluids, pastes, sludges, and bulk materials in silos, conveyors, stockpiles, and crushers. Also suitable for flow measurement in open channels and weirs.
Built-in temperature sensor ensures accurate measurements even with temperature variations
Hermetically welded PVDF sensor provides highest chemical resistance
Separate sensor and transmitter installation up to 300m for rough ambient conditions
Reduces build-up formation for reliable long-term operation
Simplifies commissioning with FMU90/FMU95 transmitters
Weather resistant and flood-proof (IP68) with optional heating for ice prevention
Transmitter options: FMU90, FMU95. For specific application variants, consult FDU92 for foam/high turbulence conditions, FDU91F for flange-flush assembly, and FMU95 for tank farm scanner applications.
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